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Structural Engineering and Mechanics Volume 25, Number 2, January30 2007 , pages 219-237 DOI: https://doi.org/10.12989/sem.2007.25.2.219 |
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Influence of cable loosening on nonlinear parametric vibrations of inclined cables |
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Qingxiong, WuKazuo Takahashi and Baochun Chen
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| Abstract | ||
| The effect of cable loosening on the nonlinear parametric vibrations of inclined cables is discussed in this paper. In order to overcome the small-sag limitation in calculating loosening for inclined cables, it is necessary to first derive equations of motion for an inclined cable. Using these equations and the finite difference method, the effect of cable loosening on the nonlinear parametric response of inclined cables under periodic support excitation is evaluated. A new technique that takes into account flexural rigidity and damping is proposed as a solution to solve the problem of divergence. The regions of inclined cables that undergo compression are also indicated. | ||
| Key Words | ||
| inclined cable; loosening; parametric vibration | ||
| Address | ||
| Qingxiong Wu; College of Civil Engineering, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian, China Kazuo Takahashi; Department of Civil Engineering, Faculty of Engineering, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki, Japan Baochun Chen; College of Civil Engineering, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian, China | ||